Pith Number

pith:I2BSLYPJ

pith:2008:I2BSLYPJPNWL2GTZ4ERIJ5CI2J

not attested not anchored not stored refs pending

Contact surgeries and the transverse invariant in knot Floer homology

Andras Stipsicz, Peter Ozsvath

arxiv:0803.1252 v3 · 2008-03-08 · math.SG · math.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2BSLYPJPNWL2GTZ4ERIJ5CI2J}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:24:57.540549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468325e1e97b6cbd1a79e12284f448d27788c9f670d237f33ddbc2e8ec4de97b

Aliases

arxiv: 0803.1252 · arxiv_version: 0803.1252v3 · doi: 10.48550/arxiv.0803.1252 · pith_short_12: I2BSLYPJPNWL · pith_short_16: I2BSLYPJPNWL2GTZ · pith_short_8: I2BSLYPJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/I2BSLYPJPNWL2GTZ4ERIJ5CI2J \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 468325e1e97b6cbd1a79e12284f448d27788c9f670d237f33ddbc2e8ec4de97b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6701170d28599c574437af7fb6ad802c99192e4b697db9c3f16d1ee662291408",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2008-03-08T16:51:56Z",
    "title_canon_sha256": "eb173d0d61c5ae2b85d6c588e97e18968bf4b05b438596fed3b6d812806548c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.1252",
    "kind": "arxiv",
    "version": 3
  }
}